CN103032995A - Heat accumulation type multi-heat-source heat pump set - Google Patents
Heat accumulation type multi-heat-source heat pump set Download PDFInfo
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- CN103032995A CN103032995A CN2012105895409A CN201210589540A CN103032995A CN 103032995 A CN103032995 A CN 103032995A CN 2012105895409 A CN2012105895409 A CN 2012105895409A CN 201210589540 A CN201210589540 A CN 201210589540A CN 103032995 A CN103032995 A CN 103032995A
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Abstract
The invention discloses a heat accumulation type multi-heat-source heat pump set, which belongs to the technical field of a water pump heat supply air conditioner, is capable of realizing the alternating utilization of solar energy, environmental air heat energy and shallow soil heat energy and is compact in structure. The heat accumulation type multi-heat-source heat pump set comprises a compressor, a user side heat exchanger, a liquid reservoir, a dry filter, a throttling device, a soil side heat exchanger, a gas-liquid separator and a finned tube heat exchanger, wherein the finned tube heat exchanger is connected with the soil side heat exchanger in parallel, the compressor is connected with the user side heat exchanger connected with the dry filter through the liquid reservoir, the dry filter is connected with the throttling device, the throttling device is connected with the soil side heat exchanger sequentially through a third valve and a first valve, the soil side heat exchanger is connected with the compressor through the gas-liquid separator, two ends of a serial branch circuit between the soil side heat exchanger and the first valve are connected with a finned tube heat exchanger branch circuit in parallel, and the finned tube heat exchanger branch circuit is formed by a one-way valve, the finned tube heat exchanger and a second valve. The heat accumulation type multi-heat-source heat pump set disclosed by the invention has three heat supply modes and one heat accumulation mode.
Description
Technical field
The invention belongs to the heat pump heat supply air-conditioning technical field, particularly relate to a kind of many heat source heat pumps of heat accumulating type unit, be applicable to the larger civil buildings of cold district Winter heat supply demand, hotel, office building etc.
Background technology
At present, be applied to gradually the civil buildings heating field of cold district as the heat pump type air conditioning system of low-temperature heat source with solar energy, surrounding air heat energy, thin solum heat energy, when yet the low-temperature heat source take single source as source pump carries out air conditioning and heating at cold district, often there is variety of issue.Cross when low in temperature such as net for air-source heat pump units, outdoor heat exchanger surface can frosting, causes compressor volume decrease in efficiency, heating capacity descends, sometimes even can't start, existing net for air-source heat pump units adopts the mode of electric auxiliary heat to ensure heating effect usually, unit integrated operation hydraulic performance decline.And with thin solum as the earth-source hot-pump system of source heat pump heat when severe cold area is used, because summer is to the heat exhaust of soil much smaller than the heat-obtaining amount of winter to soil, cause heat exchanger surrounding soil temperature reduced year by year, reduced runnability and the reliability of earth-source hot-pump system.Because solar energy has low energy-flux density, intermittence and instable characteristics, the heat pump take solar energy as thermal source often needs larger heat collector area, needs simultaneously auxiliary thermal source, although energy saving of system is better, but system complex, initial investment is higher, and is less economical.The problem that exists in order to overcome single natural energy resources heat pump is good solution with the integrated complementary utilization of various natural energies source, however system's relative complex in existing employing various natural energies source, and initial investment is higher.
Summary of the invention
Problem for prior art exists the invention provides a kind of many heat source heat pumps of heat accumulating type unit, and this source pump has realized that solar energy, surrounding air heat energy, thin solum heat energy alternately utilize, and compact conformation, is convenient to install, and operation control flexibly.
To achieve these goals, the present invention adopts following technical scheme, a kind of many heat source heat pumps of heat accumulating type unit comprises compressor, user's side heat exchanger, liquid reservoir, device for drying and filtering, throttling arrangement, soil side heat exchanger, gas-liquid separator and the finned tube exchanger in parallel with soil side heat exchanger; The outlet of described compressor is connected with an end of user's side heat exchanger, and the other end of user's side heat exchanger is connected with an end of device for drying and filtering through liquid reservoir, and the other end of device for drying and filtering is connected with the entrance of throttling arrangement; The outlet of throttling arrangement is connected with the low port of soil side heat exchanger by the 3rd valve, the first valve successively, and the high port of soil side heat exchanger is connected with the entrance of compressor through gas-liquid separator; Two ends in the series arm of described soil side heat exchanger and the first valve are parallel with the finned tube exchanger branch road, and described finned tube exchanger props up route check valve, finned tube exchanger and the second valve and forms; The low port of described finned tube exchanger is connected between the first valve and the 3rd valve through the second valve, the high port of finned tube exchanger is connected with the entrance of check valve, the outlet of check valve is connected between soil side heat exchanger and the gas-liquid separator, and described soil side heat exchanger installation site is higher than finned tube exchanger.
Described user's side heat exchanger is air cooling heat exchanger or water cooling heat exchanger.
Described soil side heat exchanger is water cooling heat exchanger.
Described finned tube exchanger is air cooling heat exchanger.
The fin surface of described finned tube exchanger scribbles the coating of solar selectively absorbing material.
Described the first valve, the second valve and the 3rd valve adopt electrodynamic type, electromagnetic type or hand-operated valve.
Described throttling arrangement adopts electric expansion valve, orifice plate, capillary, ball-cock assembly or its combination.
The present invention is provided with three kinds of heat supply modes and a kind of accumulation of heat pattern: solar energy-air source-earth source heat pump heat supply mode, solar-powered-air source heat-pump heat supply mode, earth source heat pump heat supply mode and separate heat pipe accumulation of heat pattern; When moving described solar energy-air source-earth source heat pump heat supply mode, soil side heat exchanger, user's side heat exchanger and finned tube exchanger work; When moving described solar-powered-air source heat-pump heat supply mode, user's side heat exchanger and finned tube exchanger work; When moving described earth source heat pump heat supply mode, user's side heat exchanger and the work of soil side heat exchanger; When moving described separate heat pipe accumulation of heat pattern, finned tube exchanger and the work of soil side heat exchanger.
Beneficial effect of the present invention:
1, the present invention has realized the complementary utilization of various heating sources, has both effectively utilized natural energy resources, has reduced again the to external world impact of environment; In parallel with soil side heat exchanger by finned tube exchanger, realized being used alternatingly of various energy resources, reduced the heat-obtaining amount from soil, help to realize the thermal balance of heat exchanger surrounding soil, multiple cycle sharing compressor, user's side heat exchanger, throttling arrangement are so that the source pump structure is simpler, compact;
2, the present invention is by separate heat pipe accumulation of heat pattern, with summer airborne heat store in soil, improved the soil moisture and source pump heating effect in winter, further alleviated the imbalance problem of heat-obtaining in winter, heat extraction;
3, the present invention is coated with the coating of selective absorbing material at the fin surface of finned tube exchanger, operating temperature and the heat exchange amount of finned tube exchanger have been improved, realized the comprehensive utilization of air heat energy and two kinds of natural energy resources of solar energy, both improve the heating performance of heating period heat pump, improved simultaneously the heat storage performance of non-heating period separate heat pipe.
Description of drawings
Fig. 1 is the structural representation of many heat source heat pumps of heat accumulating type unit of the present invention;
Fig. 2 is the structural representation of the present invention behind removal soil side heat exchanger and the first valve;
Fig. 3 is the structural representation of the present invention behind the removal finned tube exchanger branch road;
Fig. 4 is the structural representation that finned tube exchanger branch road, soil side heat exchanger and the valve of being connected connect;
Among the figure, 1-compressor, 2-user side heat exchanger, 3-liquid reservoir, 4-device for drying and filtering, 5-throttling arrangement, the 6-the three valve, 7-soil side heat exchanger, 8-gas-liquid separator, 9-finned tube exchanger, the 10-the first valve, the 11-the second valve, 12-check valve.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of many heat source heat pumps of heat accumulating type unit, comprise compressor 1, user's side heat exchanger 2, liquid reservoir 3, device for drying and filtering 4, throttling arrangement 5, soil side heat exchanger 7, gas-liquid separator 8, and the finned tube exchanger 9 in parallel with soil side heat exchanger 7; The outlet of compressor 1 is connected with an end of user's side heat exchanger 2, the other end of user's side heat exchanger 2 is connected with an end of liquid reservoir 3, the other end of liquid reservoir 3 is connected with an end of device for drying and filtering 4, and the other end of device for drying and filtering 4 is connected with the entrance of throttling arrangement 5; The outlet of throttling arrangement 5 is connected with the low port of soil side heat exchanger 7 by the 3rd valve 6, the first valve 10 successively, and the high port of soil side heat exchanger 7 is connected with an end of gas-liquid separator 8; The other end of gas-liquid separator 8 is connected with the entrance of compressor 1; Two ends in the series arm of described soil side heat exchanger 7 and the first valve 10 are parallel with finned tube exchanger 9 branch roads, and 9 route check valves 12 of described finned tube exchanger, finned tube exchanger 9 and the second valve 11 form; The low port of described finned tube exchanger 9 is connected between the first valve 10 and the 3rd valve 6 through the second valve 11, the high port of finned tube exchanger 9 is connected with the entrance of check valve 12, the outlet of check valve 12 is connected between soil side heat exchanger 7 and the gas-liquid separator 8, and described soil side heat exchanger 7 installation sites are higher than finned tube exchanger 9.
Described user's side heat exchanger 2 is air cooling heat exchanger or water cooling heat exchanger.
Described soil side heat exchanger 7 is water cooling heat exchanger.
Described finned tube exchanger 9 is air cooling heat exchanger.
The fin surface of described finned tube exchanger 9 scribbles the coating of solar selectively absorbing material.
Described the first valve 10, the second valve 11 and the 3rd valve 6 adopt electrodynamic type, electromagnetic type or hand-operated valve.
Described throttling arrangement 5 adopts electric expansion valve, orifice plate, capillary, ball-cock assembly or its combination.
The present invention is provided with three kinds of heat supply modes and a kind of accumulation of heat pattern: solar energy-air source-earth source heat pump heat supply mode, solar-powered-air source heat-pump heat supply mode, earth source heat pump heat supply mode and separate heat pipe accumulation of heat pattern; When moving described solar energy-air source-earth source heat pump heat supply mode, user's side heat exchanger 2, soil side heat exchanger 7 and finned tube exchanger 9 work; When moving described solar-powered-air source heat-pump heat supply mode, user's side heat exchanger 2 and finned tube exchanger 9 work; When moving described earth source heat pump heat supply mode, user's side heat exchanger 2 and 7 work of soil side heat exchanger; When moving described separate heat pipe accumulation of heat pattern, soil side heat exchanger 7 and finned tube exchanger 9 work.
Below in conjunction with description of drawings use procedure of the present invention:
As shown in Figure 1, when outdoor temperature is higher than the setting value one of system, for example-10 ℃, and indoor temperature is lower than the setting value two of system, for example 18 ℃, open simultaneously the 3rd valve 6, the second valve 11, the first valve 10, operation solar energy-air source-earth source heat pump heat supply mode; Enter into indoor user side heat exchanger 2 from compressor 1 of the present invention high-temperature high-pressure refrigerant out by tube connector, in indoor user side heat exchanger 2 after the heat release, pass through successively liquid reservoir 3 after the condensation of refrigerant, device for drying and filtering 4 enters throttling arrangement 5, this moment the 3rd valve 6, the second valve 11, the first valve 10 is opening, cold-producing medium is divided into two-way through the 3rd valve 6 after the step-down throttling in throttling arrangement 5, one road low-temperature low-pressure refrigerant enters finned tube exchanger 9 through the second valve 11 by tube connector and absorbs solar energy and airborne heat, another road low-temperature low-pressure refrigerant enters the heat that soil side heat exchanger 7 absorbs in the soil through the first valve 10 by tube connector, cold-producing medium is endothermic gasification in the heat exchanger of two parallel connections respectively, the cold-producing medium that flows out in the finned tube exchanger 9 through after the check valve 12 with soil side heat exchanger 7 in the cold-producing medium that flows out converge, together enter gas-liquid separator 8, flow into compressor 1 through tube connector again, realize solar energy-air source-earth source heat pump heat supply mode.In finned tube exchanger 9 exits check valve 12 is installed, can be prevented that the cold-producing medium in the soil side heat exchanger 7 from flowing into finned tube exchanger 9.
As shown in Figure 2, when outdoor temperature is higher than the setting value one of system, for example-10 ℃, and indoor temperature is higher than the setting value two of system, and for example 18 ℃, open the 3rd valve 6, the second valve 11, close the first valve 10, operation solar-powered-air source heat-pump heat supply mode; Enter into indoor user side heat exchanger 2 from compressor 1 of the present invention high-temperature high-pressure refrigerant out by tube connector, in indoor user side heat exchanger 2 after the heat release, pass through successively liquid reservoir 3 after the condensation of refrigerant, device for drying and filtering 4 enters throttling arrangement 5, cold-producing medium after the step-down throttling is through the 3rd valve 6, the second valve 11 enters finned tube exchanger 9 by tube connector and absorbs solar energy and airborne heat, cold-producing medium behind the endothermic gasification passes through check valve 12 successively, gas-liquid separator 8 flows into compressor 1, realize the solar-powered-air source heat-pump heat supply mode, this pattern is applicable to the less situation of thermic load, and the heat that use finned tube exchanger 9 to provide this moment separately just can satisfy indoor heat supply.
As shown in Figure 3, when outdoor temperature is lower than the setting value one of system, for example-10 ℃, open the first valve 10, the 3rd valve 6, close the second valve 11, operation earth source heat pump heat supply mode; The cold-producing medium that flows out from throttling arrangement 5 enters the heat that soil side heat exchanger 7 absorbs in the soil through the 3rd valve 6, the first valve 10 by tube connector, the cold-producing medium endothermic gasification flows in the compressor 1 by gas-liquid separator 8, realize the earth source heat pump heat supply mode, be applicable to the situation that outdoor temperature is lower, thermic load is larger.At this moment, the heat that uses separately soil side heat exchanger 7 to provide can satisfy indoor heat supply.
As shown in Figure 4, non-for warm season, when outdoor temperature and soil side heat exchanger 7 surrounding soil temperature differences are higher than default value three, for example 10 ℃, open the second valve 11, the first valve 10, close the 3rd valve 6, move separate heat pipe accumulation of heat pattern; Cold-producing medium absorbs solar energy and airborne heat in finned tube exchanger 9, cold-producing medium after the gasification upwards flow to the position and is higher than its soil side heat exchanger 7, condensation heat release in soil side heat exchanger 7, heat is stored to soil, condensed cold-producing medium flows in the finned tube exchanger 9 of lower owing to the gravity reason, and the principle that has realized utilizing separate heat pipe in summer together drains into accumulation of heat pattern in the soil with solar energy and airborne heat.
Device for drying and filtering 4 is used for residual impurity and the impurity in the cold-producing medium in the filter plant, and the moisture in the absorption refrigeration agent, prevents that ice is stifled, dirty stifled phenomenon.
In the present embodiment, cold-producing medium can adopt R22, R134a etc.; The coating of solar selectively absorbing material can adopt black nickel, black chromium etc.
Claims (8)
1. many heat source heat pumps of heat accumulating type unit is characterized in that comprising compressor, user's side heat exchanger, liquid reservoir, device for drying and filtering, throttling arrangement, soil side heat exchanger, gas-liquid separator and the finned tube exchanger in parallel with soil side heat exchanger; The outlet of described compressor is connected with an end of user's side heat exchanger, and the other end of user's side heat exchanger is connected with an end of device for drying and filtering through liquid reservoir, and the other end of device for drying and filtering is connected with the entrance of throttling arrangement; The outlet of throttling arrangement is connected with the low port of soil side heat exchanger by the 3rd valve, the first valve successively, and the high port of soil side heat exchanger is connected with the entrance of compressor through gas-liquid separator; Two ends in the series arm of described soil side heat exchanger and the first valve are parallel with the finned tube exchanger branch road, and described finned tube exchanger props up route check valve, finned tube exchanger and the second valve and forms; The low port of described finned tube exchanger is connected between the first valve and the 3rd valve through the second valve, the high port of finned tube exchanger is connected with the entrance of check valve, the outlet of check valve is connected between soil side heat exchanger and the gas-liquid separator, and described soil side heat exchanger installation site is higher than finned tube exchanger.
2. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that described user's side heat exchanger is air cooling heat exchanger or water cooling heat exchanger.
3. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that described soil side heat exchanger is water cooling heat exchanger.
4. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that described finned tube exchanger is air cooling heat exchanger.
5. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that the fin surface of described finned tube exchanger scribbles the coating of solar selectively absorbing material.
6. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that described the first valve, the second valve and the 3rd valve adopt electrodynamic type, electromagnetic type or hand-operated valve.
7. many heat source heat pumps of heat accumulating type unit according to claim 1 is characterized in that described throttling arrangement adopts electric expansion valve, orifice plate, capillary, ball-cock assembly or its combination.
8. many heat source heat pumps of heat accumulating type unit claimed in claim 1 is characterized in that being provided with three kinds of heat supply modes and a kind of accumulation of heat pattern: solar energy-air source-earth source heat pump heat supply mode, solar-powered-air source heat-pump heat supply mode, earth source heat pump heat supply mode and separate heat pipe accumulation of heat pattern; When moving described solar energy-air source-earth source heat pump heat supply mode, soil side heat exchanger, user's side heat exchanger and finned tube exchanger work; When moving described solar-powered-air source heat-pump heat supply mode, user's side heat exchanger and finned tube exchanger work; When moving described earth source heat pump heat supply mode, user's side heat exchanger and the work of soil side heat exchanger; When moving described separate heat pipe accumulation of heat pattern, finned tube exchanger and the work of soil side heat exchanger.
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| CN2012105895409A CN103032995A (en) | 2012-12-27 | 2012-12-27 | Heat accumulation type multi-heat-source heat pump set |
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| CN2012105895409A CN103032995A (en) | 2012-12-27 | 2012-12-27 | Heat accumulation type multi-heat-source heat pump set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106091113A (en) * | 2016-06-23 | 2016-11-09 | 海信（山东）空调有限公司 | The control method of a kind of pair of thermal source indoor set, double thermal source indoor set and air-conditioner |
| CN110230882A (en) * | 2019-04-26 | 2019-09-13 | 南京霍普医疗科技有限公司 | A kind of Trans-critical cycle CO using phase-changing energy-storing2Air-source system |
| CN112747585A (en) * | 2019-10-16 | 2021-05-04 | 东南大学 | Open heat pump drying system based on soil source, air source and solar energy coupling |
| CN113983525A (en) * | 2021-11-15 | 2022-01-28 | 三一筑工科技股份有限公司 | Heating system, control method, control device, heating equipment and storage medium |
| CN115307334A (en) * | 2022-08-08 | 2022-11-08 | 安徽工程大学 | Multi-heat-source heat pump air conditioning system and operation control method thereof |
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| CN112747585B (en) * | 2019-10-16 | 2022-03-08 | 东南大学 | Open heat pump drying system based on soil source, air source and solar energy coupling |
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| CN115307334A (en) * | 2022-08-08 | 2022-11-08 | 安徽工程大学 | Multi-heat-source heat pump air conditioning system and operation control method thereof |
| CN115307334B (en) * | 2022-08-08 | 2024-01-26 | 安徽工程大学 | Multi-heat source heat pump air conditioning system and operation control method thereof |
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Application publication date: 20130410 |